Home / 19,958.20-29,893.02-12,915.56

Finding the Fourth Proportional to 19,958.20, 29,893.02 and 12,915.56

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Solution

The fourth proportional to 19,958.20, 29,893.02 and 12,915.56 is: 19,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.20 : 29,893.02 = 12,915.56 : x
  2. Step 2: Convert to fraction form
    19,958.20/29,893.02 = 12,915.56/x
  3. Step 3: Cross multiply
    19,958.20x = 29,893.02 × 12,915.56
  4. Step 4: Simplify right side
    19,958.20x = 386,085,093.39
  5. Step 5: Solve for x
    x = 386,085,093.39/19,958.20
  6. Step 6: Final answer
    x = 19,344.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.